baber/WOPTO huggingface dataset:
Patent GB-421138-A (GB)
Title: Process for the production of an explosive
IPC: C06B25/34
Filed: 1933-10-16
Abstract: An explosive material, described as oxidized hexamethylenetetramine, is prepared by passing gaseous ammonia into a commercial aqueous solution of formaldehyde at a temperature not exceeding 10 DEG  C., adding nitric acid of specific gravity not below 1,52 to the resulting hexamethylenetetramine solution while maintaining the temperature at 5 DEG  C. or below, and drying the precipitate which forms.  An example is given.  British Specifications 145,791, [Class 9 (ii)], and 388,615 are referred to.  Reference has been directed by the Comptroller to German Specification 104,280 and other documents.
Patent GB-1362526-A (GB)
Title: Method of and apparatus for electrostatic colour printing
IPC: G03G15/01
Filed: 1971-06-18
Abstract: 1362526 Colour electro-photography SAVIN BUSINESS MACHINES CORP 18 June 1971 [18 June 1970] 28695/71 Heading G2H In the automatic production of a print of a multicolour original by the repeated steps of charging, exposing and liquid-developing a photo-conductive copy material, the copy material is reciprocated along a straight line path past selectively operable treatment units. As shown, a reciprocatory carriage 12 carries a roll 30 of copy material, blotting material 35, cutter 51/52, window 36, clamping pad 38, projector 60, optical filter wheel 80, and mirror 84, the copy material being passed over a series of stations comprising corona discharge devices 101 and 108, wetting units 102 and 107, and developer units 103-106, units 102-107 having solenoid-actuated raising and lowering means. Each wetting unit may have an electrical precipitation Fig. 9 or 9a (not shown) and recirculation system. Each developer unit may comprise a pair of rollers of the same diameter Fig. 8 (not shown) or a series of rollers of increasing diameter Fig. 4 (not shown). The copy material may be subjected successively to fatigue exposure, prewetting, charging, black-andwhite exposure, pre-development wetting, development, charging, red exposure, etc. Impure cyan (containing magenta) and magenta (containing yellow) toners may be compensated for: for example, a red exposure/ cyan development may be followed by a green exposure - brief blue exposure/magenta development. In a more compact form Figs. 10-16, (not shown) the reciprocatory carriage carries the projector but rotary optical filter units, each containing a mirror are situated at each end position of the carriage. The developer units are pivotably carried at index positions on a vertical rotary wheel (with solenoid-actuated means for preventing swinging in the active position) and each comprise a pair of applicator rollers and a blotter roller Fig.13 (not shown). A blower is associated with each corona discharge device Fig. 16 (not shown). In another form Figs. 17- 23 (not shown), a projector, optical filter wheel and mirror are situated at one end position of the carriage (a solenoid-actuated locating pin ensuring registration of carriage and projector) and the treatment units comprise a corona discharge unit, discharging lamp, blotting roller, air knife, pre- and post-developing two roller wetting units Figs. 18, 21 and 23 (not shown) and a vertical rotary developer wheel having gearing to maintain the developer units level Fig.22. (not shown) One of the rollers of the wetting unit has a doctor blade, the roller being used dry in the post-development treatment.
Patent GB-442240-A (GB)
Title: Coking of agglomerates
IPC: C22B1/22
Filed: 1934-10-08
Abstract: 442,240. Agglomerating ores. IMPROVED METALLURGY, Ltd., 95, Gresham Street, London.-(Assignees of Bunce, E. H. ; 160, Front Street, New York, U.S.A.) Oct. 8, 1934, Nos. 28805 and 28806. Convention dates, Oct. 9, 1933. Addition to 344,570. [Class 82 (i)] [See also Group XII] In the coking of agglomerates as described in the parent Specification, and in which large volumes of hot non-oxidizing gases are passed transversely through a shallow body of the agglomerates, the charging extension of the coking chamber is maintained hot by heat insulation, and by diverting part of the hot gases through it. The charge from a hopper 22, with sliding gate 23, falls into the lower end of an extension 36 of the retort 8 through which it passes, and is discharged by a rotating cylinder 26, and counterweighted gate 27. Hot gases entering by conduit 6 pass horizontally through the charge to a 'dust extractor 50, and waste heat boiler 53 through which they are drawn by a fan 56 which drives them either to a stack 57A or to a dryer 62 in which the charge is treated prior to coking. The extension 36 is heat insulated, and has at its top a pipe 30 in connection with a fan (not shown), which during charging diverts part of the hot gas from the retort through the extension 36, and prevents air entering the hopper from reaching the charge. A pipe 35 withdraws to the pipe 30 any air entering the discharge gate 27, a damper 31 being placed to close a pipe 24 leading to conduit 51. When charging and discharging are completed, the damper 31 is placed to close pipe 30, and open pipe 24 so that the extension 36 is under suction from the fan 56. Air for combustion in the waste heat boiler is admitted through pipe 52, and cold air may be admitted to pipe 58 to dilute the hot gases before they reach the dryer. The heating gas enters at a temperature of at least 800‹ C., and leaves the retort at not less than 555‹ C., the agglomerates being rapidly coked at their surfaces to produce a shell of coke. Specification 344,569 also is referred to.
Patent GB-1274307-A (GB)
Title: Process for producing aminobenzophenone derivatives and their salts
IPC: A61G17/02
Filed: 1969-06-06
Abstract: 1,274,307. Aminobenzophenones. SUMI. TOMO CHEMICAL CO. Ltd. 6 June, 1969 [13 June, 1968 (2); 12 July, 1968; 19 Aug., 1968], No. 28860/69. Heading C2C. Compounds of the general formula (X, Y=H, halogen; R=C 1-3  alkyl; R 1 =H, C 1-3  alkyl) and their salts are prepared by contacting a compound of the formula (R 2 =CHO, carbalkoxycarbonyl) or salt thereof at an elevated temperature with a hydrolysing agent under alkaline conditions, optionally followed by alkylation and/or salt formation. The starting materials are prepared by alkylating a compound of the formula (R 3 =CHO, carboxycarbonyl, carbalkoxycarbonyl). Reference has been directed by the Comptroller to Specification 1,148,622.
Patent GB-373043-A (GB)
Title: Improvements in ignition coils
IPC: H01F38/12
Filed: 1931-10-19
Abstract: 373,043. Ignition coils. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Oct. 19, 1931, No. 28939. Convention date, Nov. 12, 1930. [Class 38 (ii).] Connection between the secondary winding 3 and the H.T. terminal 16, 17 of,an ignition coil is made by a strip 18 that is clamped in contact with the terminal by a compression spring 12 located between the core 1 and the terminal. The end of the strip is twisted round the upper convolution of the spring. Sheets 9 wholly or partly embracing the coil form the return magnetic path.
Patent GB-878718-A (GB)
Title: Method of stabilizing trichloroethylene and stabilized compositions thereof
IPC: C07C17/42
Filed: 1958-09-10
Abstract: Trichloroethylene is stabilized for use in metal degreasing by addition of (a) an amine, preferably di-isopropylamine in an amount of 0.001-0.1% by weight, (b) an alkyl-p-hydroxyanisole, preferably ethyl- or isopropyl-p-hydroxyanisole, in an amount of 0.001-0.1% by weight, and (c) either propylene or butylene oxide, preferably in an amount of 0.01-by weight.ALSO:Trichlorethylene is stabilized for use in metal degreasing by addition of (a) an amine, preferably di-isopropylamine in an amount of 0.001-0.1% by weight, (b) an alkyl-p-hydroxyanisole, preferably ethyl- or isopropyl-p-hydroxyanisole in an amount of 0.001-0.1% by weight, and (c) either propylene or butylene oxide, preferably in an amount of 0.01-1% by weight.  Esters and alcohols may also be present in the compositions.
Patent GB-409000-A (GB)
Title: Improved plant for rolling and finishing round rods
IPC: B21B1/16
Filed: 1932-10-17
Abstract: 409,000. Skew-rolling. WISE, G. A., Park Building, Pittsburg, U.S.A. Oct. 17, 1932, No. 29003. [Class 83 (iv).] Mill plant.-Relates to a process for working round bars and tubes in which the stock is passed through successive sets of skew rollers such as 2, 4, 5, Fig. 2, for descaling, straightening, rounding, reducing and smoothing, and consists in providing the successive sets of rolls with progressively increasing areas of bearing surface on the stock, and in imparting continuous longitudinal tension to the stock as it passes through the rolls. In the complete plant shown in plan in Fig. 4, rods from a hot mill are passed first through rolls 1 for straightening and preliminary scale breaking and are then fed through a chamber 3 fitted with adjustable nozzles for applying a steel blast to remove the scale and reduce the cross section. The stock then progresses through successive sets of rolls 2, 4, 5 for rounding and reduction, smoothing, and polishing respectively.
Patent GB-390748-A (GB)
Title: Improvements in apparatus for washing plates and the like
IPC: A47L15/36
Filed: 1932-10-17
Abstract: 390,748. Dish - washing apparatus. STILL & SONS, Ltd., W. M. and STILL, E. H., 29, Charles Street, Hatton Garden, London. Oct. 17, 1932, No. 29011. [Class 138 (i).] The platform 1 for receiving dish-holding racks is adapted to be reciprocated between washing and rinsing sprays arranged close together and adapted to be brought i n t use alternately. As shown, the platform is reciprocated by means of links 3 connected through rocking arms 5 to a link 4 actuated by a crank 7 upon a shaft 8 which is driven from a motor 9. The motor drives a pump which takes washing liquid from a sump 13 and delivers it to upper and lower sets of sprays 11, 12. The liquid returns to the sump through a removable strainer 15. Rinsing sprays 16 located near to the washing sprays receive rinsing water from a separate pipe system 17. A valve 18 is provided for controlling the supply of washing water and a valve 19 normally closed by a spring controls the supply of rinsing water.
Patent GB-617383-A (GB)
Title: Improvements in or relating to the manufacture of refractory substances
IPC: C04B35/18
Filed: 1946-09-28
Abstract: A mould made by the "lost wax" process or other refractory article is produced by subjecting to a temperature over 500 DEG  C. a suspension of sillimanite in water mixed with a suspension of bentonite in alcohol.  10 lb. of sillimanite sand (30 mesh) is mixed with 2 litres of water and a mixture of 1 1/2 to 3 ozs. of bentonite with 200 c.c. of alcohol is added.  This mixture is poured into a flask in which a wax pattern is mounted, the flask is agitated for 20 - 50 mins., surplus liquid is removed, and, after 2 hours air drying, the mould is removed from the flask, dried in air for 12 hours, and baked for say 3 hours.  To make the mould, before baking, less friable, the mixture may contain 4 to 12 ozs. of bentonite and 4 to 12 of magnesium sulphate be added. In another modification the mixture contains 3.2 ozs. of bentonite and magnesium silicate is added or formed during the process by adding 5 ozs. of silica, 3 of boric acid, 2 of light magnesium oxide, and 1 of magnesium chloride.
Patent GB-1044507-A (GB)
Title: Improvements in locomotives adapted to be suspended from an overhead track
IPC: B61C13/04
Filed: 1965-07-08
Abstract: 1,044,507. Braking devices for rail vehicles. ANGLO - TRANSVAAL CONSOLIDATED INVESTMENT CO. Ltd. July 8, 1965 [July 10, 1964], No. 29031/65. Heading F2E. [Also in Division B7] A locomotive suspended from an overhead track 3, Fig. 3, comprises a rigid frame 2, pairs of running wheels 5 engaging the upper surfaces of the lower flanges 6 of the I-beam 4 forming the track and a wheel 16 vertically movable in the frame 2 to drivingly engage the lower surface of the I-beam and driven by a diesel engine 7, Fig. 1 (not shown), via a torque converter 9, coupling 10, reduction gearing 11, drive shaft 12 with universal joints 13 and a driven shaft 14, a support 26 for the wheel 16 having pivoted thereon one end of each of a pair of rigid links 24 whose other ends are spaced apart one fore and the other aft of the support 26 and abut the ends of a slot 23 in a draw-bar 20 slidable in either direction longitudinally of the frame 2 in guides 21, whereby movements of the bar due to traction loads or braking cause vertical movement of the wheel 16 to automatically vary the wheel pressure applied to the track 3. The draw-bar 20 is bifurcated between its ends 27 to engage a pair of links pivoted to a support at each side of the wheel 16. The supports are carried in bearing blocks 18 movable in guides 19 in the frame 2. The axles for the wheels 5 are swivelly mounted on the frame 2.
Patent GB-290626-A (GB)
Abstract: 290,626. Akt.-Ges. C. P. Goerz Optische Anstalt. May 18, 1927, [Convention date]. Sights.-A telescopic sight is made with an eyepiece 7 and a. casing H for the directing prisms of the incoming rays, both rotatably mounted on a horizontal hollow spindle 2. The line from the target is led to the objective 10, Fig. 1, by a prism 14, a double prism 13, and another prism 12. The objective 10 together with a prism 9 and the eyepiece 7 pivot at 6 on the hollow spindle 2, which is carried by a bedplate 1 mounted on a machine gun by means of a dovetailed groove. The casing H carries the prisms 12, 13, 14, and is elevated about its pivot 2 by means of a worm. 3. This worm may be actuated by a knob 17, Fig. 2, for ground angle and by a knob 19 for firing angle, a double clutch 19<a>, 19<b> allowing the independent operation of these two settings. The ground angle is indicated by a pointer on the knob 19. and the firing angle by a radially movable pointer 23 worked by a spiral groove on a disc 22 geared to the knob 19. The prism 14 is mounted in a head-piece 5 rotatable about a vertical axis in the casing H by means of a worm 15 to make the lateral adjustment in the usual way. The prism 13 receives movement from the lateral adjustment of the prism 14 and from the inclination of the telescope about its pivot 6 by means of a differential bevel gear K and pinions 5<a>, Z, and 6<a>, to compensate the optical system for these two movements in a known way.
Patent GB-1460640-A (GB)
Title: Quartz cr
Inventor: OGUCHI KIKUO
IPC: G04G3/00
Filed: 1974-04-11
Abstract: 1460640 Quartz flexural resonators SUWA SEIKOSHA KK 11 April 1974 [30 May 1973] 29076/76 Divided out of 1460638 Heading H1E A quartz piezoelectric flexural resonator comprises a laminar bifurcate quartz crystal plate 17 having interdigitated electrodes on one or on both faces. Electrode 19, Fig. 5a, on the obverse face is connected by conductor 25 to electrode 21, Fig. 10, on the reverse face, whilst electrode 18 is connected by conductor 24 to electrode 20. Electroded areas 22, 23 of the plate are secured by solder or conductive adhesive to mutually-insulated conductive surfaces 28, 29 of a ceramic mounting block 27. A three-terminal arrangement may be obtained by connecting electrodes 19, 21 in common, and electrodes 20, 18 to separate terminals. The resonator is tuned by removing conductive material 26 from the ends of the limbs with a laser. The lamina consists of an X-cut plate rotated first through an angle between 0 degrees and 10 degrees about the X-axis and then through an angle between 70 and 90 degrees about the Y<SP>1</SP> axis. Excitation of the electrodes gives rise to opposed electric fields with components in the X plane and consequent flexural vibration in a plane parallel to the electrodes. A modified electrode arrangement is shown in Fig. 10. Used as a filter, electrodes 45, 46 are used for driving, electrodes 41, 42 and 43, 44 as separate pairs of detecting electrodes. A manufacturing method is described in which a number of resonators are formed from a single sheet of quartz. The electrode pattern for all the resonators is first formed on the sheet using a photo-etching technique, then a similar technique is applied to cut the individual resonators from the sheet (Fig. 9, not shown).
Patent GB-521794-A (GB)
Title: Improvements in gun-turrets for aircraft
IPC: F41A27/26
Filed: 1938-10-07
Abstract: 521,794. Aircraft gun control. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. Oct. 7, 1938, No. 29177 [Class 92 (i)] An aircraft gun turret, which is operated as to gun training and elevating by motors 10, 12, 14 disposed in an hydraulic system fed from a power-driven pump 18, has an auxiliary hand pump 50 connected to the system and operable by the gunner whilst he still retains full control of the gun aiming motors. In the system shown, a rotary motor 10 for training the turret, and reciprocating motors 12, 14 for elevating and training the gun with respect to the turret, are controlled by valves 11, 13, 15 the pressure mains 16 being normally fed by the pump 18 and exhaust taking place through the pipe line 17 leading to the drain 42. An isolating valve 35, controlled by a handle 64 normally urged to the dotted-line position by a spring 63, and occupy-, ing the position shown when the gun control handle is gripped, serves to connect the pressure supply to exhaust when the guns are not working. The gunner normally controls the guns by foot and right hand, but if power fails, he can with his left hand'move a lever 65 to dotted line position to operate simultaneously the change-over valves 28, 43. His left hand'is then used on lever 51 to actuate the auxiliary pump 50 which draws from the drain 17 through pipe 49, and delivers to the main 16 through a pipe 56, variations in the volume of liquid being compensated for by a tank 70. When the changeover is made, the operative position of the isolating-valve 35 is ensured by a collar 73 on the link 67 which engages a member 74 on the valve arm 59. In a modification, the valves 35, 28 can be replaced by simple on-and-off valves if a non-return valve is placed in the delivery pipe of the pump 18.
Patent GB-283832-A (GB)
Title: Improvements relating to extra warp motions for looms
IPC: D03D49/06
Filed: 1927-11-02
Abstract: 283,832. Bradley, J., and Hardy, H. Nov. 2, 1927. Letting-off warps.-Extra warp K is introduced at any ratio to the ground warp R by passing it from one or more beams M under and over intergeared rollers J. The shaft H of one of these rollers is driven by a chain or other means from an interchangeable wheel E on the trunnion or shaft D of a roller C around which the ground warp passes from one or more beams A. The roller C has a cloth or other gripping surface so as to be rotated by the ground warp, and thus the extra warp is fed over a rail N into the loom by means driven from the ground warp and at any desired ratio to the speed thereof. The shafts D, H may be connected by a train of pinion or bevel or worm wheels or rope or belt and pulley or other variable transmission gears. The extra warp is used to produce effects in the pattern or design of cotton warp, woollen weft, single shuttle goods.
Patent GB-504923-A (GB)
Title: Improvements in or relating to electric current supply arrangements
IPC: H02M7/62
Filed: 1937-10-26
Abstract: 504,923. Converting. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 26, 1937, No. 29235. Convention date, Oct. 26, 1936. [Class 38 (ii)] In an arrangement for supplying a load such as a wireless receiver with A.C. from either a D.C. or an A.C. source and comprising a transformer and vibratory interrupter, the transformer primary is divided into two symmetrical parts L1, L2 which may be connected at will either through the interrupter P to a D.C. source a, b so as to function alternately, or directly to an A.C. source. In the latter case, either one part alone or the two parts in parallel may be used. The moving contacts of the interrupter are spring-mounted on a vibrating reed F, Fig. 3, so that they dwell on the fixed contacts and thus cause the current produced in the winding parts L1, L2, when the arrangement operates on a D.C. source, to be of rectangular wave form. Thus, when the arrangement operates on an A.C. source of a frequency, not more than half the frequency of the interrupter, the voltage produced in the secondary of the transformer is equal to that which is produced when the arrangement operates on a D.C. source of the same voltage as the R.M.S. value of the A.C. source. Symmetrical tappings g, h may be provided on the winding parts L1, L2 for adapting the arrangement to different voltages. Reference has been directed by the Comptroller to Specifications 2824/08. [Class 38], 344,948 and 359,331.
Patent GB-660209-A (GB)
Title: Improvements in disc brakes
IPC: F16D55/00
Filed: 1948-11-11
Abstract: 660,209. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Nov. 10, 1949 [Nov. 11, 1948], No. 29282/48. Class 103 (i). In a disc brake, particularly for aircraft, of the type in which axially aligned friction pads 23 are adapted to be locally engaged with the opposite faces of discs 1, 4 by means of a fluid pressure operated mechanism 17, a swivelling connection 28 is provided for transmitting the force from the actuator to the pressure member 25 for compressing the pads and discs. The swivelling connection comprises a seating member 28, secured to the operating rod 20, having a part-spherical part that engages a complementary shaped part on the pressure member 25. Although, as shown, the brake comprises inner and outer sets of discs 1 and 4 and the rod 20 passes between them and the pressure member 25 engages the two halves of a backing plate 22 on rockable projections 27, of which one is dowelled in position, there may, however, be only a single row of discs 1 and, in a modification described, the set of discs and pads 4, 23 are replaced by a rigid rod or peg having one end secured in the plate 8 and the other end acting as a fulcrum point for the member 25.
Patent GB-265113-A (GB)
Title: Improvements in the manufacture of filaments for electric incandescent lamps
IPC: H01K3/04
Filed: 1926-11-19
Abstract: 265,113. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gluhlampen). July 10, 1926, [Convention date]. Filaments of compact type, for example a filament composed of a number of close parallel coils a adapted for projection lamps, are made by winding wire ribbon or spiral filament on to a former h, Figs. 4 and 5, which determines the final shape of the filament, clamping the former and the filament in a surrounding mould n, o, Fig. 7, and annealing the filament under these conditions to eliminate internal stresses and so prevent sagging while the filament is in use.
Patent GB-946156-A (GB)
Title: Apparatus for assisting starting of internal combustion engines
Inventor: BOULTER GEORGE
IPC: F02N99/00
Filed: 1961-08-15
Abstract: 946,156. Starting compression ignition engines. PRO-COMBUR. Sept. 5, 1962 [Aug. 15, 1961 ], No. 29372/61. Headings FIB and F1K. Apparatus for assisting the starting of internal combustion engines of the liquid fuel injection compression ignition type comprises an auxiliary fuel delivery device disposed or formed for disposal for delivery of auxiliary fuel at a point in the air induction system 1 of the engine, a heating device 4 capable of heating or heating and igniting fuel delivered by the auxiliary fuel delivery device, supply passages connected or arranged for connection respectively to a source of normal fuel 6 as used in the injection device or devices of the engine and to a source of special starting fuel 7 of lower ignition temperature and change over valve apparatus 8 by which fuel can be caused to be delivered to the auxiliary fuel delivery device at will from either of the supply passages. The heating device may be automatically controlled so that it will operate at a higher temperature when the normal fuel is being delivered to the auxiliary fuel delivery device than when the special fuel is being delivered to this device or the heating device may not be operated when the special fuel is being used. Separate nozzles may be provided for the normal fuel and the special fuel.